Interplastic Corporation is a specialty chemical company with headquarters in St. Paul, Minnesota. The company focuses on the production and distribution of unsaturated polyester and vinyl ester resins, gel coats, and colorants for the composites and cast polymer industries.
Interplastic has been manufacturing CoREZYN® thermoset resins, gel coats, and colorants for the composites and cast polymer industries since 1959. They introduced CoREZYN epoxy-based vinyl esters in 1978 and today, they produce the most extensive line of vinyl ester resins in the marketplace. Their full-service product development laboratories are located in Minneapolis and St. Paul, Minnesota; Fort Wright, Kentucky; and Hawthorne, California. In addition, all of their manufacturing facilities and research and development laboratories are ISO 9001:2015 certified. The Minneapolis, Ft. Wright, Pryor, Kent, and Hawthorne facilities are also ISO 14001:2015 certified. interplastic.com